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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2010-11-24 12:57:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-11-25 06:50:47 +0900 |
| commit | d1d73578e053b981c3611e5a211534290d24a5eb (patch) | |
| tree | 3879428554320c30bc3ccfd0b217710e256ca36f /drivers/eisa | |
| parent | b38eeaae267e4cd385ababcc2df82f6c46fc8633 (diff) | |
| download | linux-d1d73578e053b981c3611e5a211534290d24a5eb.tar.gz linux-d1d73578e053b981c3611e5a211534290d24a5eb.tar.bz2 linux-d1d73578e053b981c3611e5a211534290d24a5eb.zip | |
backlight: grab ops_lock before testing bd->ops
According to the comment describing ops_lock in the definition of struct
backlight_device and when comparing with other functions in backlight.c
the mutex must be hold when checking ops to be non-NULL.
Fixes a problem added by c835ee7f4154992e6 ("backlight: Add suspend/resume
support to the backlight core") in Jan 2009.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Richard Purdie <rpurdie@linux.intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/eisa')
0 files changed, 0 insertions, 0 deletions